She has zero empathy with anyone and if her wants and desires are thwarted she resorts to childish insults such as ''You're Scottish. You have your fat to keep you warm''.
Classic case of Narcissistic Personality Disorder (and not 'borderline' either.) if she wanted an ambulance on the train, perhaps one should have picked her up at the nearest stop and carried her off for a psychiatric assessment.
I can't imagine being a train worker while she demands first class due to illness
I think I would have wet myself laughing.( real people with real problems aside).